New acrylamide and oxazolidin derivatives from a termite-associated Streptomyces sp.

Two new compounds, named 2-formylpyrrole-4-acrylamide (1) and dihydrostreptazolin (2) were isolated from the fermentation broth of BY-4, an actinomycetes residing in the gut of Odontotermes formosanus. The structures of 1 and 2 were elucidated by extensive spectral analysis (1H, 13C, 2D NMR, and HR-ESIMS). The isolated compounds were assayed for cytotoxic and antimicrobial activities.